Collapsible paste-tube.



'3. s. TAINTER.

COLLAPSIBLE PASTE TUBE.

APPLICATION FILED APR. Il, I9IB.

. y Patented Aug. 13, 1918.

INVENIUY by Mumwqmdgz@ ATTyS.

UNITED sTATEs PATENT OFFICE;A K

SIMON S. TAJNTEB, OF WELD, MAINE, ASSIGNOR 0F ONE-HALF T0 GUY 0. GARDNER, 01|?- y DIXFIELD, MAINE.

ycoLLArsnaLE PASTE-TUBE.

Specification of Letters Patent. Patented Allg. 13, 1918.

- Application and April 1'1, isis. seriaino. 228,045.

To all whom'z't may concern:

Be it known that I, SIMON S. TAINTER, a. citizen of the United States, residing at Weld, county of Franklin, State of Maine, have invented a certain new and useful Improvement in Collapsible Paste-Tubes, of which the following is a specification, reference being had therein to the accompanying drawings.

The invention relates to an improvement in collapsible tubes employed to hold paste or pasty compounds. In the construction of collapsible tubes of this character there is usually provided a rigid nipple for the tube through which the paste is expelled and some sort of a closure device is employed to close the aperture in the nipple when the tube is not in use. Sometimes t-he closure device consists of a pin or other kind of a plug which is l inserted in the aperture. Sometimes a screw cap is provided which is set up to cover the aperture when the tube is not in use and sometimes the cap is provided with an aperture which when the cap is screwed down onto its seat is closed by a plug or stopper of some kind on the end of the nozzle and which when the cap is loosened or screwed back away from .its seat forms a port for the discharge of the paste. In all such forms of construction heretofore known to me the plug forms a part of the nozzle integral therewith or rigidly connected therewith and also rigidly connected with the body of the tube so that. when the cap is rotated Vto either open or close the aperture for the passage of the paste the plug does not rotate. but the cap rotates with relation to the plug. If the discharge orifice is circular andthe closure portion of the plug is also circular. the plug will always be 1n alinement with the orifice vand will close the orifice when the cap is fully screwed down to its seat. even if the cap ro tates and the plug does not rotate. With some class of pastes. however. more particularly the heavy pastes, it is desired to have the paste expelled in ribbon form so termed. that is. in a thin flat strip. When this is desired the discharge orifice-inthe cap must be of corresponding elongated form to sha e the ribbon as it passes through it and t e closure portion of the plug should also be of suitable elongated cross sectional contour to fit the aperture in the cap. It is essential that the end of the plug shall be kept in proper alinement with the aperture in the cap so that the plug will always surely tit into the aperture when the cap is screwed down but with this form of construction, it will not be in alinement unless the plug rotates on its axis in unison with the cap so as to always maintain the alinement. The object of the present invention is to provide a construct-ion which willaccomplish this result. v

The invention will be fully understood from the following description when taken in connection with the accompanying draw-V ings and the novel features thereof will be pointed out and clearly defined in the claims at the close of this specication.

In the drawings, Figure 1 is a side elevation of the upper portion of a paste tube provided with a top embodying the invention, the cap being screwed down into closure position.

Fig. 2 is a vertical central section of the device shown in Fig. l.

Fig. 3 is a vertical central section on the same lines as Fig. 2 showing the top open ready for use.

Fig. 4 is a vertical central sect-ion Vtaken-'at right angles to Fig. 3 on line 4-4 of Fig. 3 showing the cap open.

Fig. 5 is a section on line 5-5 of Fig. 2.

Fig. 6 is a plan view of the cap.

Fig.. 7 is a sectional view of the plugbefore it is inserted in the tube.

Fig. 8 is a side elevation partly in section showing the nozzle and the upper portion of the paste tube before the plug is inserted, to show the upwardly extending annular lip around the nozzle which when the parts are assembled is bent down to lock the ball ol the plug into the socket within the nozzle.

Having reference now to the drawings, 1 represents the body of the paste tube which as usual is made of thin flexible metal having a rigid conical upper portion 2. The said conical portion 2 terminates in arigid nozzle portion 3 formed with a threaded portion 4 which is engaged by the internally threaded portion 5 of the cap 6.

Preferably the nozzle portion 3 is formed with an annular groove 7 below the threaded portion 4. and the cap 6 is formed with an in-turned annular ange 8 which engages with said groove 7. The shoulder 9 at the lower end of the threaded portion of the nozzle forms a stop which prevents the cap from being disengaged from the nozzle but. the groove 7 is of sufhcient. width vertically so that it forms a neck on the nozzle of greater length than the thickness of the flange 8 so asy-to allow a limited range of movement of the cap in an axial direction.

The flange 8 may be formed by crimping in the lower end of the cap after it has been screwed onto the nozzle.

The nozzle 3 is formed with a passage 10 from the interior ot/he tube 1 terminating in a cup shaped recess 11'in its upper end. A plug 12 is formed with a semi-spherical or ball shaped lower end 13 which lits into the cup shaped recess 11 and is rotatable on its axis therein. Said plug is formed with a passage 14 extending from the lower end of the ball portion upnearly to the top' of the plug and with lateral ports 15 leading from said central aperture 14 out. through the sides of the plug.

The cap 6 is formed with an aperture 1 6 elongated in plan view and the plug 1'2 is formed with a closure portion 1T which is elongated in plan view and adapted to fit in and close the aperture16 in the cap. Preferably the said closure portion 1T has flaring sides as shown in Fig. 7 and the sides of the aperture. 16 are. formed flaring as shown in Fig. 3 so that. the plug may more surely close the aperture.

The cap 6 is formed with a vertical groove or key way 1S in one side of the inner periphery and the plug 1Q is formed with a feather 19 which has a sliding fit in said key way so that the cap may move axially with relation to the plug but whenever the cap is rotated thel plug will be caused to rotate with it. Thus when the cap is rotated so as to move it up or down. as its threads 5 move in engagement with the threads l of the nozzle. the plug 12 will be rotated with the cap. The cap will also move axially7 as well as'rotate but the plug simply rotates on its axis without moving axially because the ball 13 on the lower end of the plug is locked against axial movement by the annular flange 2O on the upper end of the nozzle 3 which engages in the annular notch Q1 between the ball 13 and the projecting shoul der '22 of the plug. The feather 19 is so located radially on the side of the plug with relation to the longitudinal direction of the top of the closure portion 1T and with relation to the key way 1S in the cap. that when the feather is engaged in the key way the closure portion 1T of the plug will be in alinement. with the aperture 16 in the cap, that is. the longitudinal media-n line of the top of the closure portion 1T will be parallel wlth the longitudinal median line of the aperture 16.

In the construction of the. device. in order to properly assemble the plug with the nozzle the annular flange :20 extends upwardly as shown in Fig. 8. this flange is made thin and the metal of which the nozzle is made is somewhat pliable so that after the ball 13 of the plug becomes seated in the socket 11 this flange 20 is crimped over into the notch 21 so as to prevent the plug from being drawn out of the socket. This crimping 1s conveniently done by screwing down the cap so that the shoulder 2:2 of the plug will engage the upper edge of the flange 20 and bend it over into the notch as shown in 2. 3 and l. After it is once crimped down as above described. the plug cannot follow the axial movement of the cap when the latter is unscrewed but it will merely rotate on its axis.

ll'hen the. cap is fully screwed down as shown in Fig. '2 the closure end 17 of the plug fills the outlet aperture 16 of the cap as shown in Fig. 2 so that there is no' possibility of the paste being ejected. When it is desired to eject some of the paste. the cap is rotated to unscrew it and it can be unscrewed until the flange 8 engages with the shoulder 9 on the nozzle which would.

be suflicient to completelyr withdraw the closure portion 1T of the plug from the aperture 16 asshown in Figs. 3 and 1. This makes a free passage from the interior of the paste tube through the aperture 10 of the nozzle. thence through the aperture 1l of the plug. thence through the lateral ports 15 of the plug and thence through the open space 23 between the upper end of the plug and the inner wall of the cap and thence out through the aperture 16.

ll'hen it is desired to close the tube again the cap will be screwed down. the plug rotating with it. thus always keeping the closure end 17 in alinement with the aperture 16. and when fully screwed down the closure member 1T will close'the aperture in the cap.

llvhat I claim is:

1. A collapsible paste tube having av neck formed with a discharge passage from the interior of the tube through the neck. a cap having a screw threaded connection with said neck. the top of the cap being formed with a discharge orifice. and a plug having one end connected with said neck in such manner that it is rotatable on its axis with relation to the neck. the outer end of said plug being shaped and arranged to close the said orifice in the cap when the cap is screwed down upon the neck.

2. A collapsible paste tube having a neck formed with a discharge passage from the interior of the tube through the neck. a cap having a screw threaded connection with said neck. the 'top of the cap being formed with a discharge orifice. a plug having one end connected with said neck 1n such manner that it is rotatable on its axis with relation to the neck, the outer end of said plug being shaped and arranged to close the said orifice in the cap when the cap is screwed down upon the neck, and means for connecting the said cap with said plug in suc-h manner that When the cap rotates the plug is caused to rotate with it but which permits the cap to move axially with relation tothe plug, the plug being formed with a passageway leading from the passage through the neck t0 the orifice in the cap.

3. A collapsible paste tube having a neck formed with a discharge passage from the interior of the tube through said neck, a capl having an orifice in the outer end and being connected with said neck in such manner that it is axially movable with relation thereto,y and a plug connected at one end with said neck in such manner that it is rotatable on its axis with relation to said neck, the outer end of said plug being constructed in such form as to be adapted t0 close the orifice in the cap, the plug being formed with a passageway leading from the pas' sage through the neck to said orifice in the cap, Said cap being axially movable with relation to the plug whereby the cap may be set in position so that the plug will close the orifice in the cap and mayalso be moved so that the said orice will be opened to the said discharge passage leading from the interior of the tube.

4. A collapsible paste tubehaving a neck formed with a discharge passage from the interior,l of the tube through said neck, a cap having an orifice in theouter end and being connected with said neck in such manner that it is axially movable with relationv thereto, a plug connected at one end with said neck in such manner that it is rotatable on its axis 'with relation to said neck,the outer end of Said plug being constructed in such form as to be adapted to close the orilice in the cap, a passageway leading from the passageway in the neck to said orifice in the' cap, said cap being axially movable with relation to the plug whereby the'cap may be set in position so that the plug will close the -oriice in the cap and may also be moved so that the said orice will be opened to the said discharge passage from the interior of the tube, andA means whereby the rotation of the cap 'causes the rotation of the plug and at the same time permits axial movement of the cap with relation to the plug.

from the cap.

with relation to said neck, its other end be' ing of a form adapted to close said orifice in the cap, a key way and feather connection between said cap and said plug whereby the rotation of the cap causes rotation of -the plug and permits longitudinal movement of the cap with relation to the plug, and mea-ns for preventing longitudinal movement of the plug with relation to the said neck, said plug being formed with a passageway leading from the passageway in the neck to the interior of the cap, the passageway therefrom being open through said orice in the cap when the cap is unseated from the end .of the plug.

6. A collapsible paste tube having a neck formed with a discharge passage from the interior of the tube and formed with exterior screw threads, a cap having a screw thread on a portion of its inner periphery to engage with the threads on said neck, the top of the cap being formed with a discharge orifice elongated in a direction transversely of the axis of the cap, a plug having' venting the said plug from axial movement with relation to the neck, the outer end of said plug being formed as a closure which is adapted to close the said orifice in the cap, means for connecting the said cap with said plug in such manner that when the cap rotates the plugis caused to rotate with it, but which permits the cap to move axially with relation to the plug, said connecting means being so located and arranged that the longitudinal median line of the end of the plug is always parallel with the longitudinal median line of the orifice in the cap, said plug being formed with a passageway connecting with the passageway in the neck and with the outlet passage ln testimony whereof lf affix my signature.

SIMON s. TAINTER. 

